2Which of the following is the upper layer in differential extraction?
a) Solvent layer b) Solute layer e) Aqueous layer d) None of the mentioned
3. Aniline is separated from aniline-water mixture using
a) Fractional distillation
4 Which of the following is not the advantage of falling film evaporator?
Which of the following is not separated through distillation process?
Acetone and water b) Aniline and chloroform c)
Impurities in Sea water d)
Milk and water
b) Fractional crystallization
c) Steam distillation
d) All of the above
Short residence time of liquid b) Good performance with small temperature difference across heating surfaces
Operates at lower temperature difference than rising film evaporator
d) Long residence time of liquid
Great economies of operation may be made in large installations with
Multiple effect evaporator
b) Centri-themm evaporator
Falling film evaporator
d) Rising film evaporator
6 Ratio of capacity to economy is known as
b) Steam consumption per hour c) Sediment consumption per hour
Water consumption per hour
is the total mass of water vaporized per unit mass of steam input to the evaporator.
Efficiency of evaporator b) Economy of evaporator
d) Milk consumption per
c) Rate of evaporator
Capacity of evaporator
8 Which of the following separation processes involves spinning the mixture at high speeds?
9 Which of the following separation processes uses fine mesh fibers to separate suspension mixtures?
10 The evaporator in which the material to be evaporated boils outside the horizontal tube and steam condenses inside the tubes is called
b) Mixing c)Drying
Horizontal tube evaporator
b) Vertical tube evaporator
Vacuum pan evaporator
d) Forced circulation evaporator
Q2: EXPLAIN A) SEDTZ FILTER B)SUPER CENTRIFUGE
OBJECTIVE OF EVAPORATION. ENUMERATE PRINCIPAL WORKING CONSTRUCTION MERTIS AND DEMERITS OF MULTIPLE
EFFECT EVAPORATOR. WRITE ABOUT ECONOMY OF MULTIPLE EFFECT EVAPORATOR. (10)
(5*2)Q3: WHAT IS